Soyuz (rocket)

**Soyuz 11A511**
Function	Carrier rocket
Manufacturer	OKB-1
Country of origin	Soviet Union
Size
Height	45.6 metres (150 ft)
Diameter	10.3 metres (34 ft)
Mass	308,000 kilograms (680,000 lb)
Stages	2
Capacity
Payload to; LEO	6,450 kilograms (14,200 lb)
Associated rockets
Family	R-7
Derivatives	Soyuz-U; Soyuz-U2; Soyuz-FG; Soyuz-2
Launch history
Status	Retired
Launch sites	Baikonur Sites 1/5 & 31/6
Total launches	30
Successes	28
Failures	2
Maiden flight	28 November 1966
Last flight	24 May 1975
Notable payloads	Soyuz
Stage - Block A/B/V/G
Engines	1 RD-107
Thrust	994.3 kilonewtons (223,500 lbf)
Specific impulse	315 sec
Burn time	118 seconds
Fuel	RP-1/LOX
First Stage - 11S59
Engines	1 RD-108
Thrust	977.7 kilonewtons (219,800 lbf)
Specific impulse	315 sec
Burn time	292 seconds
Fuel	RP-1/LOX
Second Stage - 11S510
Engines	1 RD-0110
Thrust	294 kilonewtons (66,000 lbf)
Specific impulse	330 sec
Burn time	246 seconds
Fuel	RP-1/LOX

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This article is about the original Soyuz, for later derivatives see Soyuz (rocket family)

The Soyuz (Russian: Союз, meaning "union", GRAU index 11A511) was a Soviet expendable carrier rocket designed by OKB-1 and manufactured by State Aviation Plant No. 1 in Samara, Russia. It was used to launch Soyuz spacecraft as part of the Soyuz programme, initially on unmanned test flights, followed by the first 19 manned launches of the programme.^[1]

The Soyuz first flew in 1966, and was derived from the Voskhod rocket,^[2] it was a member of the R-7 family of rockets. It was a two-stage rocket, with four liquid-fuelled strap-on booters clustered around the first stage, with a Block I second stage.

Soyuz rockets are assembled horizontally in the MIK Building at the launch site. The rocket is then rolled out, and erected on the launch pad.